DetachHandler.java

/*******************************************************************************
 * Copyright (c) 2012 Wind River Systems, Inc. and others. All rights reserved.
 * This program and the accompanying materials are made available under the terms
 * of the Eclipse Public License v1.0 which accompanies this distribution, and is
 * available at http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Wind River Systems - initial API and implementation
 *******************************************************************************/
package org.eclipse.tcf.te.tcf.processes.ui.handler;

import java.util.Iterator;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.te.tcf.processes.core.model.interfaces.IProcessContextNode;
import org.eclipse.tcf.te.tcf.processes.core.model.steps.DetachStep;
import org.eclipse.ui.handlers.HandlerUtil;

/**
 * Detach from process command handler implementation.
 */
public class DetachHandler extends AbstractHandler {

	/* (non-Javadoc)
	 * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
	 */
	@Override
	public Object execute(ExecutionEvent event) throws ExecutionException {
		ISelection selection = HandlerUtil.getCurrentSelection(event);
		if (selection instanceof IStructuredSelection && !selection.isEmpty()) {
			Iterator<?> iterator = ((IStructuredSelection)selection).iterator();
			while (iterator.hasNext()) {
				final Object candidate = iterator.next();
				if (candidate instanceof IProcessContextNode) {
					Runnable runnable = new Runnable() {
						@Override
						public void run() {
							DetachStep step = new DetachStep();
							step.executeDetach((IProcessContextNode)candidate, null);
						}
					};

					Protocol.invokeLater(runnable);
				}
			}
		}

		return null;
	}

}